Luminaire



FIG. 1 is a perspective view of the design for a luminaire.

FIG. 2 is a front view of the design.

FIG. 3 is a right side view of the design.

FIG. 4 is a left side view of the design.

FIG. 5 is a top view of the design.

FIG. 6 is a bottom view of the design; and,

FIG. 7 is a back view of the design.

The broken line showing of environmental structure is for illustrativepurposes only and forms no part of the claimed design.

The ornamental design for luminaire, as shown and described.